Vane Pumps, Positive Displacement Pumps

Lear Romec introduced the vane pump design for aerospace
applications in the late 1920's and continues to refine the technology. Today,
we produce single and multiple element vane pumps designed to operate in a
variety of demanding environments. Lear Romec vane pumps are robust and can be
used in oil, fuel, and coolant applications.

A typical vane element consists of a rotor, liner, and vanes
as illustrated. The liner encases the rotor and vanes with the vanes sliding
within their slots in the rotor. As the rotor rotates within the liner,
centrifugal force throws the vanes outward to form a seal with the liner. A
partial vacuum is then created at the inlet side of the pump drawing in fluid
which is discharged through the outlet side upon further rotation of the rotor.
The unique geometry of the vane liner bore creates the
needed fluid flow as the rotor and blades rotate inside it.